BIMETAL-EXCHANGED ZEOLITE BETA FROM ORGANOTEMPLATE-FREE SYNTHESIS AND USE THEREOF IN THE SELECTIVE CATALYTIC REDUCTION OF NOX

摘要

SUMMARY OF THE INVENTION₂ And X₂O₃1. A method for producing a zeolite material having a BEA-₂One or more sources of X₂O₃ RTI ID = 0.0 of: /RTI (2) crystallizing the mixture obtained in step (1); (3) performing an ion-exchange procedure with copper for the zeolite material having the BEA-type framework structure obtained in step (2); And (4) performing an ion exchange procedure with Fe for the Cu ion-exchanged zeolite material obtained in step (3), wherein Y is a tetravalent element, X is a trivalent element, Wherein the mixture provided in step (1) and crystallized in step (2) further comprises a column comprising at least one zeolite material having a BEA-type framework structure, wherein step (2) Wherein the crystallized mixture does not contain an organic template as a structure-directing agent, and wherein the zeolite material itself having a BEA backbone structure, and in particular NO (NO) by selective catalytic reduction (SCR)_X/RTI